Sight-feed oil-pump for use on automobiles and motor-vehicles.



H. NI. STRUNG. SIGHT FEED UIL PUMP EUR USE 0N AUTOMOBILES AND MOTOR VEHICLES.

APPLICATION FILED IULY 22.1915.

Patented Apr. 11, 1916.

2 SHEETS-SHEET l.

H. IVI. STRONG.

OIL PUMP FOR USE ON AUTOMOBILES AND MOTOR VEHICLES.

APPLICATION FILED JULY 22.1915.

1,178,762. Patented Apr. 11, 1916.

2 SHEETS-SHEET 2- UMTED sTATEs PATENT orricn. i

HARVEY MAY STRONG, OF DES MOINES, IOWA, ASSIGNOR TO IERKINS MANUFAC- TUBING COMPANY, OF DES MOINES, IOWA, CORPORATION OF IOWA. l

SIGHT-FEED OIL-PUMP FOR USE ON AUTOMOBILES AND MOTORfVEHICLES.

biles and Motor-Vehicles, of which the fol-v lowing is a specification.

My invention relates to a sight feed oil pump for use on`automobiles and` motor vehicles, and is operated by a lever arm resting on the valve tappet, the movements of the lever arm being controlled by power derived vfrom the valve tappet and a spring; and the objects of my invention are, first, to` provide a simple, eliicient and inexpensive means-for constantly .and automatically indicating, while the engine, or motor, is being operated, the `presence or absence of` lubricating oil in the crank case, or oil reservoir, from the interior o f the vehicle; second, to provide a means of automatically distributing lubricating oil to the several moving parts of the motor, or engine; third, by so placing my mechanism to provide a means for preventing wastage in the use of lubricating oil by directing all leakage back into the crank case, or oil reservoir; fourth, to so' construct and assemble my mechanism as to make instalment thereof on an automobile or motor vehicle easy and expeditious; fifth, to operate my mechanism by power derived from the valve tappet and the expansion of the piston return spring; sixth, to so arrange all parts of my mechanism as to provide constant lubrication thereofwith out the use of oil cups or other lubricating devices. I attain these objects by the mech-V anism illustrated in the accompanying drawing, in which-- v- Figure 1f, is a cross section of the lever arm with the lower end in place and resting on thevalve tappet, the pump, and T with ball checks including portions of intake and exhaust pipes; Fig. 2, is a top 'view of the lever arm held in place by the yoke and bearing pin 4together with a portion of the cylinder valve cover, or plate, and attached I -thereto is the T and portions of each of the intake and exhaust pipes; Fig. 3 shows a side elevation of an engine with. my oilerinstalled thereon, parts of the engine casing being broken away, the parts being shown` in Specification of Letters Patent. p

i Application led July 22, 1915. Serial No. 41,380.

Patented Apr. 11, 191e.

section', Fig. 4, is an in dicator placed preferably on the dash board or within the vision of the operator of the automobile or motor vehicle with intake and exhaust connections.

Similar letters refer to similar parts through 4the several views.

In the accompanying drawings, the reference numeral 10 is applied to the removable yalve cover member found on some internal combustlon engines and particularly on the -from the pivotal point of the lever at an acute angle with relation to each other, as shown in Fig. 1. The lever C may be of different forms and maybe pivotedin any suitable way, but as shown is pivoted on a pin D extending through the arms of a yoke E within the chamber 11. The' yoke E has a cylindrical portion l2 extending outwardly through the wall of the casing 10. The outer end of 'the cylindrical portion 12 is screw-threaded to receive a nut F.

The casing- 10 is located and arranged as to receive part of the pump, and the operating lever so that said parts do not interfere with the operation of the valve tappet, stem and spring. The lower arm ofthe bell crank lever C extends inwardly and rests upon the valve tappet B. The arm of the-lever which portions of;said lever arm.

Extending outwardly from the upper por- 'tion of the wall of the casing 10 is a cylinder I-I having a closedouter end. The outer end may be covered'by a screw cap lor cover J.

Slidably mounted within the cylinder H is a piston G., the inner `end of which isadapted to engage the upper arm of the lever C. Received within the cylinder-,H is a coil spring M which abuts against thecap J and the piston G for normally yieldingly holding theupper arm of the lever C inwardly and the lower arm of saidlever downwardly. For convenience I have calledthe spring M the pistonreturn spring.

Communicating with the interior of the Mit cylinder H is one passage of anordinary T coupling K. Connected with the other two passages of 'the T coupling K lare intake and discharge pipes Q and Pu'respectively, in which are ordinary check valves 13.` The pipe Q is designed to be connected with the l lower part of the crank casing of the engine, which forms an oil lreservoir 20, while the pipe P communicates with the upper portion of the sight feed oilindicator R, which may be of any suitable construction, and is designed in the case of motor vehicles, to be `mounted on the dash 21 where it will be in plain sight of the driver. Communicatf' valve tappet and piston'return spring. nThe upward movements of the valve tappet raise the lower end of the lever arm, forcing the upper end against the pump piston and compressing the Y piston return spring. The downward movements of the. valve tappet release the compression on'the spring, whereupon the pump piston is forced out against the lever arm, thereby causing the lower end of the lever arm tofollow the valve tappet on its returning movements. 4The spring M might .be dispensed 4with andby properly connecting the upper lever arm with the piston, the springe-n the valve stem will operate the piston in one direction. The piston being forced out in this manner creates a suction in pump cylinder H which draws the lubricating oil up from the crank case -through intake pipe Q past the lower ball check (which is also raised by the suction created) into H and K. The'upward movements of the valve tappet resulting in the compression of the oil in the pump cylinder and T K, force the lubricant from the pump A cylinder and T past the u perball check' into exhaust ipe P, and4 rom [there into the indicator, rom whence it retires through pipe S to the crank case being directed into the fore end thereof for reasons that will be hereinafter set out.

The tappet B is the usual and ordinary tappet found in automobiles yand motor vehicles generally,'and is part of my mechanism only in sc far as motive power to operate the mechanism is derived therefrom.

responding tappet so 'als to shorten pipe lines to and from -the'indicatonan'd so as not .to interfere with other parts of the motor.

l The open end ofthe pumpv cylinder, as Ishown by the drawing in lFig.v 1, is placed so that any leakage' therefrom falls back into the crank case, and is, accordingly,

saved. The open end of the pump being placed-immediately above the bearing pin through lever arm C provides for its lubrication since practically all leakage from the pump first falls on the pin after leaving the pump.l The end of the lever arm resting on the valve tappet is lubricated by the connecting rods 23l of the engine splashing the lubrican't on the valve tappet. The other and upper end of the lever arm coming in direct contact with the pump piston is always lubricated by the constant leakage from the pump.,

Pipe S carries the returning lubricant to the fore end of the crank case from whence` it passes through the succession ofconnecting rodl drip cups 24 to the rear end of the crank case which is the lowest part, thereby' insuring constantlubrication of the forward Lubrication v'of the' cylinders of the engine. forward cylinders under exclusively gravity systems of lubrication is obviously impossible 4when the automobile or motor vehicle is 'ascending 'an incline steep enough to place the lower end ofthe pipe carrying the lubricant higher than the intake end. This result is achieved by making R airtight, the lubricant being pumped through the exhaust pipe from the indicator rather than passing through it` as a flow'superinduced by gravitation. i

While in the drawings of my mechanism the lever arm C appears resting on the valve y tappet and inserted between the tappet and the valve stem, I have found by recent experimentation that 1better results are secured,.and at the same time mechanism is more readily installed by forlng the lower end 4of the lever arm, permitting the tines of the fork to rest on the valve tappet, which is greater in diameter than the valve stem,

and allow the valve stem to operate in the hollow portionbetween the tines of the fork as previously referred to. By this method .of construction and. linstallation it is not first `necessary to remove a portion of the valve stem to permit of the insertion of the lever arm between the stem\ and the tappet. Lever arm C may be attached directly to either the tappet or the stem, but I prefer vto rest it on' the tappet as stated. My I method of constructing and installing the lever arm interferes in no way with the functions of the stem and tappet .and they perform unimpeded their functions with my mechanism attached.

My mechanism is made with cylinder valve cover l a partthereof. Although the valve v,covers vary in size and shape with the different kinds and makes of automobiles and motor vehicles this situation may be easily met by changing the size and shape of the covers.l The casing 1 0 on the cylinder valve cover may be so cast with respect'` to width as toeliminate yoke E as a sepa 130 rate part, the sides of the bulge when set apart suiiiciently to accommodate the lever arm serving the same function as the tyoke.

When the bulge is so cast nut F also may be eliminated. A l

For clearness of description, I wish to State that the words crank case and oil reservoir as used throughout this specification refer to one and the same mechanical part of the automobile or motor vehicle, and mean: the compartment in which is placed the oil that lubricates the moving parts of the engine. I also wish to state that the Words motor and engine mean one and the same thing and. refer to the mechanical part of the automobile or motor vehicle from which power to operate the same is derived.

Any convenient. form of indicator carryingout the principles of the above description of a pump cylinder, intake and discharge pipes connected therewith, the intake pipe being adapted to be connected with an oil reservoir, a sight feed oil indicator, said discharge pipe being connected with the upper portion thereof, an exhaust pipe leading from the lower portion of said indicator, a piston slidably Amounted in said cylinder, a spring in said cylinder abutting against the piston and against a part of said cylinder, and means designed to be operatively connected with a valve tappet whereby the movement of said valve tappet in onedirectionl will impart motion to said piston in a direction for compressing the spring.

2. In a sight feed oil pump, the combination of a pump having a cylinder and a piston, with a spring adapted to yieldingly hold the piston at one limitI of its movement, a T coupling having one passage communieating with said cylinder and having other passages communicating respectively Vwith intake and discharge pipes, check valves on opposite sides of said first passage, said intake pipe being adapted to communicate with an oil reservoir, a sight feed oil indicator, said discharge pipe communicating with the upper end thereof, an exhaust pipe leading from the lower end of said indicator, and a lever fulcrumed adjacent to said pump and having one arm adaptedto engage one end of the pump cylinder, and the other arm adapted to be operated in one direction by the valve tappet of an engine for moving said piston against the pressure of said spring, whereby when an engine is operated and moves said valve tappet said pump will be operated thusl forcing lubricant from ysaid oil reservoir through said sight feed oil indicator. v

3. In a sight feed oil pump, a pump adapted to be mounted on an engine, having a cylinder openat `one end and a piston,

a spring mounted inlsaid cylinder and designed to abut against a part of the cylinderV and against the piston, a lever pivoted below the open end of the cylinder and adapted to be lubricated at its pivotal point and at its point of contact with the piston,

by leakage from thepump, having one arm.

adjacent to an end of the piston and the other arm adapted to be operated by a valve tappet, a T coupling having one passage communicating with the closed end of said cylinder, intake and discharge pipes communicating with the other passages vof said i T cou ling, check valveson opposite sides of sai first passage, a sight feed oil indicator, the upper part of which communicated with said discharge pipe, an exhaust pipe leading fromthe lower part of said indicator, said intake pipe being adapted lto communicate with an oil reservoir.

4. Ina sight feed oil pump, a pump designed to be supported adjacent to the valve tappetof an engine, comprising a cylinder, having an open inner end projecting into the casing of the engine, a piston mounted in said cylinder, a spring in said cylinder abutting against the piston and against one end of the cylinder, a lever pivotedbelow the open end of said cylinder having one end adapted to engage said piston and the other end adapted to be engagedby the valve tappet of the engine,.a T coupling having4 one passage communicating with the. outer end of the cylinder, intake andv discharge pipes communicating with the other passages of the T coupling, check valves on opposite sides of the first passage of the T coupling, a receptacle having a transparent portion, said discharge tube communicating with the upper part of said receptacle, and an exhaust tube leading vfrom the lower part of said receptacle, said intake pipe being adapted to communicate with the oil reservoir, the parts being so arranged that the pivot point 'of the lever and its point of contact with the piston will 'be lubricated by leakage from l the pump and the partl of the lever in engagement with the valve tappet will be lubricated by the movement of the engine parts.

A5. In a device of the kind described, 1 a pump comprising a cylinder mounted on an engine casing, having an open endon the interior of the casing, a piston mounted for reciprocation within the cylinder., a spring in said cylinder for yieldingly holding said .and discharge pipes communicating With said cylinder, a lever pivoted adjacent to said cylinder having one end adapted to be engaged by the valve tappet of an engine, and the other end in operativerelation With said piston, said intake pipe being designed to communicate with the crank case of an engine, the parts being so arranged that any oil leaking from the pipe will be discharged on the interior of the engine casing.

6. In a device of the kind described, a

Apump designed to be mounted adjacent to the valve tappet of an engine, comprising a` cylinder and a piston, a lever pivoted adjacent to said pump having one end adapted to be operated in one direction by the valve tappet of an engine, the other end being arranged in operative relation' to the piston, and means for operating said lever in the opposite direction.

7. In a device of the kind described, the combination with an engine having an oil reservoir, moving parts therein, With a pump adapted topump oil from the lower portion of said reservoir to the upper portion thereof, said pump having a piston, a lever arranged .in operative relation With the valve tappet of the engine and With said piston, whereby the said lever is operated in one direction for moving Athe'piston in one direction', and means for moving the lever in the opposite direction. l

8; In a device of the kind described, the combination with an engine having a valve tappet, an oil reservoir, with a pump arranged adjacent to said valve tappet, and having means for operating the piston in one direction from said valve tappet, means for operating the piston in the opposite direction, and means for operatively connecting said pump With said oil reservoir Whereby oil is pumped from the lower portion of the oil reservoirto an upper portion thereof.

9. In a device of the kind described, the combination vvith van engine having a valve tappet, an oil reservoir, with a pump arranged adjacenttosaid valve tappet, and having means for operating the piston in 'one'direction from said valve tappet, means for operating the piston inthe opposite direction, and means for operatively connecting said pump with said oil reservoir Whereby oil is pumped from the lower portion of the oil reservoir to'an upper portion thereof, said last described means including a sight feed oil indicator.

HARVEY MAY sTRoNG.

lVitnesses:

J. FRANK CRAMER, HARRY E. MAINE. 

